Function solidPngBuffer

src/__tests__/cli-diff.test.ts:19–32

Create a solid-color PNG buffer.

(
  width: number,
  height: number,
  color: { r: number; g: number; b: number },
)

/** Create a solid-color PNG buffer. */
function solidPngBuffer(
  width: number,
  height: number,
  color: { r: number; g: number; b: number },
): Buffer {
  const png = new PNG({ width, height });
  for (let i = 0; i < png.data.length; i += 4) {
    png.data[i] = color.r;
    png.data[i + 1] = color.g;
    png.data[i + 2] = color.b;
    png.data[i + 3] = 255;
  }
  return PNG.sync.write(png);
}

async function runCliCapture(
  argv: string[],